package com.example.springrabbitmq.controller;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.UUID;

/**
 * @Author forsake
 * @Description 注释Producer类，否则报错，RabbitTemplate只能被初始化一次,不能出现两个@PostConstruct
 * @Date 22:15 2022/12/10
 **/
@RestController
@RequestMapping("/confirm1")
@Slf4j
public class MessageProducer {
    @Autowired
    private RabbitTemplate rabbitTemplate;
//    @Autowired
//    private MyCallBack myCallBack;
//    // rabbitTemplate 注入之后就设置该值
//    @PostConstruct
//    private void init() {
//        rabbitTemplate.setConfirmCallback(myCallBack);
//        /**
//            * true：
//            * 交换机无法将消息进行路由时，会将该消息返回给生产者
//            * false：
//            * 如果发现消息无法进行路由，则直接丢弃
//        */
//        rabbitTemplate.setMandatory(true);
//        //设置回退消息交给谁处理
//        rabbitTemplate.setReturnCallback(myCallBack);
//    }
    @GetMapping("sendMessage/{message}")
    public void sendMessage(@PathVariable String message){
        //让消息绑定一个 id 值
        CorrelationData correlationData1 = new CorrelationData(UUID.randomUUID().toString());
        rabbitTemplate.convertAndSend("confirm.exchange","key1",message+"key1",correlationData1)
        ;
        log.info("发送消息 id 为:{}内容为{}",correlationData1.getId(),message+"key1");
        CorrelationData correlationData2 = new CorrelationData(UUID.randomUUID().toString());
        rabbitTemplate.convertAndSend("confirm.exchange","key2",message+"key2",correlationData2)
        ;
        log.info("发送消息 id 为:{}内容为{}",correlationData2.getId(),message+"key2");
    }
}

